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Carmex Thread Turning External Insert - Round - Left Hand - 27EL4RDBMA

Carmex Thread Turning External Insert - Round - Left Hand - 27EL4RDBMA

SKU:27EL4RDBMA

Carmex Thread Turning External Insert — Round, Left Hand — 27EL4RDBMA is a versatile threading tool designed for external thread turning. Built to cover a wide range of thread standards, it helps... Read more ↓
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M
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Thread TypeExternal
Thread DirectionLeft Hand
Thread FormRound
Pitch4
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£17.35
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

Carmex Thread Turning External Insert — Round, Left Hand — 27EL4RDBMA is a versatile threading tool designed for external thread turning. Built to cover a wide range of thread standards, it helps machinists and fabricators achieve consistent, accurate threads with a single, reliable insert.

This insert is suitable for engineers, shop-floor technicians, buyers, tradespeople, and hobbyists who value dependable performance and straightforward setup when tackling both standard and more demanding threading tasks.

  • Wide thread standards compatibility: Covers the majority of external thread standards in use today, helping you complete more work with fewer inserts and streamlined stock management.
  • Left-hand round insert design: Specifically engineered for left-hand external threads, delivering stable cutting action and predictable results across multiple setups.
  • Versatile performance from basic to demanding tasks: Designed to handle a broad range of threading jobs, providing reliable results and reducing the need for frequent tool changes.

Using this insert helps you streamline threading operations, cut downtime between setups, and achieve consistent thread quality across a wide range of tasks. Built for daily use in varied environments, it offers dependable performance that supports projects staying on schedule and reduces tool-change interruptions.

Part Numbers

Protool Part Number
27EL4RDBMA
Brand
Carmex
Category
Thread Turning
Delivery

Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.

Returns

14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.

Technical Support

Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Trade Accounts

Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.

What time are Protool open?

We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

  • Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
  • DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
  • Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
  • DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Carmex Thread Turning External Inserts - Round - Right/Left Hand

View full collection →

You are viewing 27EL4RDBMA. Click any other SKU to view its full details.

Product SKUThread TypeThread DirectionThread FormPitchInsert SizeGradePriceStock Order
16EL6RDBMA ExternalLeft HandRound616BMA£10.91 5 days
16EL8RDBMA ExternalLeft HandRound816BMA£10.91 5 days
16ER10RDBMA ExternalRight HandRound1016BMA£10.91 In Stock
16ER6RDBMA ExternalRight HandRound616BMA£10.91 In Stock
16ER8RDBMA ExternalRight HandRound816BMA£10.91 In Stock
22EL4RDBMA ExternalLeft HandRound422BMA£12.29 5 days
22EL6RDBMA ExternalLeft HandRound622BMA£12.29 5 days
22ER4RDBMA ExternalRight HandRound422BMA£16.00 In Stock
22ER6RDBMA ExternalRight HandRound622BMA£16.00 5 days
27EL4RDBMA ViewingExternalLeft HandRound427BMA£17.35 5 days
27ER4RDBMA ExternalRight HandRound427BMA£22.59 5 days

Complete Your Project

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